155 lines
5.2 KiB
C
155 lines
5.2 KiB
C
/* Macro defintions for IBM AIX PS/2 (i386).
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Copyright 1986, 1987, 1989, 1992, 1993 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/*
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* Changes for IBM AIX PS/2 by Minh Tran-Le (tranle@intellicorp.com)
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* Revision: 5-May-93 00:11:35
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*/
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#ifndef TM_I386AIX_H
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#define TM_I386AIX_H 1
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#include "i386/tm-i386v.h"
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#include <sys/reg.h>
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#ifndef I386
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# define I386 1
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#endif
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#ifndef I386_AIX_TARGET
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# define I386_AIX_TARGET 1
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#endif
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/* number of traps that happen between exec'ing the shell
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* to run an inferior, and when we finally get to
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* the inferior code. This is 2 on most implementations.
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*/
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#undef START_INFERIOR_TRAPS_EXPECTED
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#define START_INFERIOR_TRAPS_EXPECTED 2
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/* Number of machine registers */
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#undef NUM_REGS
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#define NUM_REGS 24 /* 16+8 */
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/* Initializer for an array of names of registers.
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There should be NUM_REGS strings in this initializer. */
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/* the order of the first 8 registers must match the compiler's
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* numbering scheme (which is the same as the 386 scheme)
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* also, this table must match regmap in i386-pinsn.c.
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*/
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#undef REGISTER_NAMES
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#define REGISTER_NAMES { "eax", "ecx", "edx", "ebx", \
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"esp", "ebp", "esi", "edi", \
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"eip", "eflags", "cs", "ss", \
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"ds", "es", "fs", "gs", \
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"st0", "st1", "st2", "st3", \
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"st4", "st5", "st6", "st7", \
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}
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/* Register numbers of various important registers.
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Note that some of these values are "real" register numbers,
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and correspond to the general registers of the machine,
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and some are "phony" register numbers which are too large
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to be actual register numbers as far as the user is concerned
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but do serve to get the desired values when passed to read_register. */
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#undef FP_REGNUM
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#define FP_REGNUM 5 /* (ebp) Contains address of executing stack frame */
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#undef SP_REGNUM
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#define SP_REGNUM 4 /* (usp) Contains address of top of stack */
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#undef PC_REGNUM
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#define PC_REGNUM 8 /* (eip) Contains program counter */
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#undef PS_REGNUM
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#define PS_REGNUM 9 /* (eflags) Contains processor status */
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#define FP0_REGNUM 16 /* (st0) 387 register */
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/* Total amount of space needed to store our copies of the machine's
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register state, the array `registers'. */
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/* 16 i386 registers and 8 i387 registers */
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#undef REGISTER_BYTES
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#define REGISTER_BYTES (16*4 + 8*10)
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/* Index within `registers' of the first byte of the space for
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register N. */
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#undef REGISTER_BYTE
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#define REGISTER_BYTE(N) \
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((N < FP0_REGNUM) ? (N * 4) : \
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(((N - FP0_REGNUM) * 10) + 64))
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/* Number of bytes of storage in the actual machine representation
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* for register N. All registers are 4 bytes, except 387 st(0) - st(7),
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* which are 80 bits each.
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*/
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#undef REGISTER_RAW_SIZE
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#define REGISTER_RAW_SIZE(N) \
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((N < FP0_REGNUM) ? 4 : 10)
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/* Largest value REGISTER_RAW_SIZE can have. */
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#undef MAX_REGISTER_RAW_SIZE
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#define MAX_REGISTER_RAW_SIZE 10
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/* Nonzero if register N requires conversion
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from raw format to virtual format. */
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#undef REGISTER_CONVERTIBLE
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#define REGISTER_CONVERTIBLE(N) \
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((N < FP0_REGNUM) ? 0 : 1)
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/* Convert data from raw format for register REGNUM
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to virtual format for register REGNUM. */
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#undef REGISTER_CONVERT_TO_VIRTUAL
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#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) \
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((REGNUM < FP0_REGNUM) ? memcpy ((TO), (FROM), 4) : \
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i387_to_double((FROM), (TO)))
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/* Convert data from virtual format for register REGNUM
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to raw format for register REGNUM. */
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#undef REGISTER_CONVERT_TO_RAW
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#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \
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((REGNUM < FP0_REGNUM) ? memcpy ((TO), (FROM), 4) : \
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double_to_i387((FROM), (TO)))
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/* Return the GDB type object for the "standard" data type
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of data in register N. */
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#undef REGISTER_VIRTUAL_TYPE
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#define REGISTER_VIRTUAL_TYPE(N) \
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((N < FP0_REGNUM) ? builtin_type_int : \
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builtin_type_double)
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/* Extract from an array REGBUF containing the (raw) register state
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a function return value of type TYPE, and copy that, in virtual format,
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into VALBUF. */
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#undef EXTRACT_RETURN_VALUE
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#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
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i386_extract_return_value (TYPE,REGBUF,VALBUF)
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/* Write into appropriate registers a function return value
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of type TYPE, given in virtual format. */
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#undef STORE_RETURN_VALUE
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#define STORE_RETURN_VALUE(TYPE,VALBUF) \
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{ \
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if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \
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write_register_bytes (REGISTER_BYTE (FP0_REGNUM), (VALBUF), \
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TYPE_LENGTH (TYPE)); \
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else \
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write_register_bytes (0, (VALBUF), TYPE_LENGTH (TYPE)); \
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}
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#endif /* TM_I386AIX_H */
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